In joint family there are more than 4 member with including Grand father and mother, Uncle and aunt  and there children living together.
A family when lives together with all family members up to 2nd generation like grand parents, parents, uncle, aunts and their children is called a joint family. The importance of Joint family is understood by the Indians since time immemorial.But while young people are going advanced with their lifestyles, they are shy away from living jointly with their parents and grandparents. These people are usually missed a lot of fun, caring, elder guidance from time to time which causes a lot of problems in the future like loneliness, frustrations, etc.